Flight manifests show that Eric Bellucci, 30, may have boarded an early afternoon flight yesterday, just after his father, Arthur Bellucci, 61, and mother, Marion Bellucci, 56, were stabbed to death. He had driven to Newark in his parents' car.

Google MapsArthur and Marian Bellucci were killed at their Poillon Ave. home last night.(Google maps)

Eric is sought for questioning in the murders, and police sources said he is the only suspect at this time.

Both were discovered when Vanessa Bellucci, the slain couple's daughter, called cops to ask them to check on the house last night around 8:30 p.m.

Police believe Eric had been absent from the house for several days. He was scheduled to fly an El Al Airlines flight 2:45 p.m. yesterday, landing in Tel Aviv. Israel today. The NYPD is checking to make sure he was on that flight.

If he indeed traveled there, an arrest would need to be coordinated with Israel authorities. The NYPD has officers permanently stationed in Israel for anti-terror operations.

Vanessa Bellucci, 25, said she moved out of the house because of conflicts with the brother, whom she said was schizophrenic, sources said. She told police she had seen her parents on Tuesday night, and was concerned when they did not show up to work yesterday.

Her uncle, Joe Ciervo of nearby Eyelandt Street, told the Advance last night that Vanessa had come to stay with him and his wife, Teri, Marion’s sister, because she had been frightened by her brother’s behavior. Eric has a history of schizophrenia and was on medication, Ciervo said.

Eric graduated Stuyvesant High School and later earned a degree from Williams College. He is listed as the chief executive officer of CareMates Inc. on Mosely Avenue in Annadale, a company that offers nursing and home health care. His mother is president and Vanessa Bellucci vice president of that company.

Police have made no arrests at this point, a spokesman told the Advance.